The delivered dose is 2.5 mcg tiotropium per puff (2 puffs per dose).
2.5 mcg tiotropium is equivalent to 3.124 mcg tiotropium bromide monohydrate (INN = tiotropium bromide).
Excipients/Inactive Ingredients: benzalkonium chloride, disodium edetate, purified water, hydrochloric acid for pH adjustment, nitrogen.